四川大学学报：工程科学版2011，Vol.43Issue(6)：173-180,8.
电力系统灾难性事故的统一不确定性评估方法
United Uncertainty Assessment Method of Power System Catastrophic Accidents
马超 1肖先勇 1杨洪耕2
作者信息
- 1. 四川大学电气信息学院,四川成都610065
- 2. 智能电网四川省重点实验室,四川成都610065
- 折叠
摘要
Abstract
In order to accurately describe the potential risk of catastrophic accidents in a power system,a new united uncertainty method to assess catastrophic accidents was proposed based on their inherent physical properties and the uncertainty theory.The catastrophic accidents were regarded as the uncertain events,and the concepts of credibility measure and global fuzzy security index were developed to describe the likelihood and severity of catastrophic accidents.The N-1 contingencies were taken as the initial accidents and the most possible catastrophic accident sequences were identified through the risk ranking of all N-k contingencies in each simulation layer.The WSCC nine buses system and a regional practical system were simulated.Compared with the traditional methods,the proposed method was more accordant to practical power system operating conditions and had better accuracy and validity.关键词
电力系统/灾难性事故/连锁故障/风险评估/不确定性理论Key words
electric power system/catastrophic accident/cascading failure/risk assessment/uncertainty theory分类
信息技术与安全科学引用本文复制引用
马超,肖先勇,杨洪耕..电力系统灾难性事故的统一不确定性评估方法[J].四川大学学报：工程科学版,2011,43(6):173-180,8.
